On the NETTUTS.com blog today there's a new post that includes a list of sixteen things you need to be sure to check before releasing your WordPress theme.

Releasing a WordPress theme on a marketplace, such as ThemeForest, where the audience is so large and diverse, has some challenges. You cannot test a solution directly with the client. You need to plan in advance for all edge cases, and ensure that your theme is as customizable as possible. If youâ€™re inexperienced, chances are that some things will unfortunately slip through the cracks. Luckily for you, we have drawn on our hard-earned wisdom to help you avoid repeating the same mistakes we made.

Among the things they suggest checking are things like:

Don't Display Comments on Protected Posts

Introduce Right-To-Left Support

Make Paginated Entries Work

Do not Forget wp_footer() and wp_head()

Support Custom Menus

Make User-Visible Strings Translatable

Each item on the list comes complete with a description and code (when it's needed).